252 Panama Shells. mytilid-B. 



Station. — Unknown. 



Habitat. — Panama ; 0. B. A. I 



A few dead shells were found in several places near Panama, 

 and fine specimens were procured at the fruit shanty. 35 spe- 

 cimens were obtained. 



400. Modiola . Sp. indet. a. 



Station, — In the crevices of rocks, between half tide and low 

 water mark. 



Habitat. — Panama and Taboga : 0. B. A. I 

 6 specimens were obtained. 



401. JTIodioIa . Sp. indet. b. 



Station.— In the crevices of rocks, between half tide and low 

 water mark. 



Habitat.— Tahoga. ; 0. B. A. I 

 85 specimens were collected. 



402. Modiola . Sp. indet. c. 



Station. — Unknown. 



Habitat. — Panama ; 0. B. A. I 

 4 specimens were obtained. 



403. Modiola— . Sp. indet. d. 



Station. — Unknown. 



Habitat. — Panama ; 0. B. A. 1 

 2 specimens were found. 



404. Modiola -, Sp. indet. e. 



Station.— In. soft, partly calcareous atones, not far from half 

 tide level. 



